I found a decent looking tank by the dumpster at my storage complex. In the tank was everything I needed to use it...lights, filters, etc.... I'm not sure of the gallons but it is a 36X24X12 inches. But anyway, I took it home and cleaned it out and saw the built by label on the bottom. The tank was built in 1990! The tank is like 20years old! Almost old enough to go out drinking! Do you think this tank is too old to trust holding water.....How old is too old for one of these glass aquariums?